Detecting single infrared photons with 93% system efficiency
Francesco Marsili,Varun B. Verma,Jeffrey A. Stern,Sean D. Harrington,Adriana E. Lita,Thomas Gerrits,Igor Vayshenker,Burm Baek,M. D. Shaw,Richard P. Mirin,Sae Woo Nam +10 more
TLDR
In this article, a fiber-coupled single-photon detection system using amorphous tungsten silicide superconducting nanowire detectors was developed, and the system detection efficiency was higher than 90% in the wavelength range between 1520 nm and 1610 nm.Abstract:
Researchers develop a fiber-coupled single-photon-detection system using amorphous tungsten silicide superconducting nanowire single-photon detectors. The system detection efficiency is higher than 90% in the wavelength range between 1520 nm and 1610 nm. The device dark-count rate, timing jitter and reset time are 1 cps, 150 ps and 40 ns, respectively.read more
Citations
More filters
Journal ArticleDOI
Ultimate low system dark-count rate for superconducting nanowire single-photon detector
TL;DR: A bulk optical band-pass filter mounted on a fiber-to-fiber optical bench cooled at 3 K and blocking down to 5 μm suppressed the DCR of a superconducting nanowire single-photon detector by more than three orders of magnitude.
Journal ArticleDOI
Optical Synthesis of Large-Amplitude Squeezed Coherent-State Superpositions with Minimal Resources.
Kun Huang,Kun Huang,H. Le Jeannic,J. Ruaudel,Varun B. Verma,M. D. Shaw,Francesco Marsili,Sae Woo Nam,Eliza Wu,Heping Zeng,Y.-C. Jeong,Radim Filip,O. Morin,Julien Laurat +13 more
TL;DR: A novel versatile protocol that allows the quantum state engineering of heralded optical coherent-state superpositions and will facilitate the use of suchsuperpositions in subsequent protocols, including fundamental tests and optical hybrid quantum information implementations.
Journal ArticleDOI
Readout of superconducting nanowire single-photon detectors at high count rates
TL;DR: In this article, a nonlinear interaction between the detector and its readout is identified, which makes stable, high-efficiency operation impossible at count rates even an order-of-magnitude less than τR−1.
Journal ArticleDOI
Superconducting nanowire single-photon detectors with 98% system detection efficiency at 1550 nm
TL;DR: In this paper, the design and fabrication of an all-dielectric layered stack and fiber coupling package was optimized to achieve 98.0±0.5% system detection efficiencies for single-mode-fiber guided photons derived from a highly attenuated 1550 nm continuous-wave laser.
Journal ArticleDOI
Low-filling-factor superconducting single photon detector with high system detection efficiency
TL;DR: Numerical simulation reveals that high optical absorptance is possible in SSPDs even for low filing factor by tuning the device design.
References
More filters
Journal ArticleDOI
Quantum Computing
Thaddeus D. Ladd,Fedor Jelezko,Raymond Laflamme,Yasunobu Nakamura,Christopher Monroe,Jeremy L. O'Brien +5 more
TL;DR: A number of physical systems, spanning much of modern physics, are being developed for this task, ranging from single particles of light to superconducting circuits, and it is not yet clear which, if any, will ultimately prove successful as discussed by the authors.
Journal ArticleDOI
Picosecond superconducting single-photon optical detector
Gregory Goltsman,O. Okunev,G. M. Chulkova,A. Lipatov,A. D. Semenov,Konstantin Smirnov,B. M. Voronov,A. Dzardanov,C. Williams,Roman Sobolewski +9 more
TL;DR: In this article, a supercurrent-assisted hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons is presented, where a photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse.
Journal ArticleDOI
Quantum Communication
Nicolas Gisin,Rob Thew +1 more
TL;DR: The current state of research and future directions in quantum key distribution and quantum networks are reviewed in this paper, with a special emphasis on quantum key distributions and quantum key sharing in quantum networks.
Journal ArticleDOI
Invited review article: Single-photon sources and detectors
TL;DR: The current status of single-photon-source and single-Photon-detector technologies operating at wavelengths from the ultraviolet to the infrared are reviewed and applications of these technologies to quantum communication are discussed.